Decision tool
Home Affordability Calculator
Estimate maximum home price from income, debts, down payment, and a target back-end DTI.
Your inputs
Adjust the fields and review the result in this workbench.
Cite this calculator
Results use the inputs you enter and standard formulas documented on this page. Not professional advice.
Last reviewed: August 2026
Home Affordability Calculator. (August 2026). Useful Tools Online. https://usefultoolsonline.com/home-affordability-calculator/
Interpretation
What this means
This backs into price from a DTI cap, then subtracts taxes and insurance from the housing budget before solving for principal.
Example
Worked example
A realistic example to show how this tool can support an actual decision.
At $8,000 income and 36% DTI with $500 other debt, you have about $2,380/mo for total housing before loan sizing.
Avoid mistakes
Common mistakes
A few things that can lead to misleading results or poor decisions.
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